An acronym for personal identification number which is a set of digits that are used to verify a cardholder or authorized user's identity at the point of sale. (creditcardeducation.com)
Each new phone stores a 16 - digit personal identification number. (newscientist.com)
Like a debit card, credit cards that are compatible with the chip and PIN implementation may require the input of a four - digit personal identification number. (wisebread.com)